[Hadoop-common-user] What is IPC classes for???

[Hadoop-common-user] What is IPC classes for???

	Ahmad Shahzad
	Jul 7, 2010 at 6:33 pm

Hi ALL,
Can anyone tell me that what is the purpose of IPC classes in
hadoop. They are in the \src\core\org\apache\hadoop\ipc folder.

Regards,
Ahmad Shahzad

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Alex Loddengaard: Hi Ahmad, Those are the classes used for daemons to talk to each other. Take a look at what IPC means: Hope this helps. Alex
Ahmad Shahzad: But i want to know if they are used by JobTracker and TaskTracker, or they are used by DataNode and NameNode. Or is it used by the child threads that are used for map-reduce to talk to TaskTracker on that machine. Regards, Ahmad Shahzad
Todd Lipcon: All of the above. See the packages org.apache.hadoop.{hdfs,mapred}.{protocol,server.protocol} -- Todd Lipcon Software Engineer, Cloudera

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posted	Jul 7, '10 at 6:33p
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[Hadoop-common-user] What is IPC classes for???

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